US3356660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preventing color degradation in the hydrogenation of hydrocarbon resins
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1964-09-25
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Granted: 1967-12-05
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Expires: 1984-09-25
Abstract
No abstract record available.
Inventors
- 👤 Moritz Karsten Herbert
- 👤 Delany Leonard Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:52
CPC Classifications
C; C08; C08F; C08F240/00; C08F8/00; C08F8/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
AN IMPROVED CONTINUOUS PROCESS FOR PREPARING A SUBSTANTIALLY WATER-WHITE PETROLEUM RESIN FROM A STEAMCRACKED NAPTHA FRACTION BOILING BETWEEN ABOUT 50 TO 450* F. HAVING THE FOLLOWING COMPOSITION:
Claim 2
Dependent Claim
27 words
AN IMPROVED CONTINUOUS PROCESS FOR PREPARING A SUBSTANTIALLY WATER-WHITE PETROLEUM RESIN FROM A STEAMCRACKED NAPTHA FRACTION BOILING BETWEEN ABOUT 50 TO 450* F. HAVING THE FOLLOWING COMPOSITION:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |